I have just done an overhaul of my '08 GRiSO 8v, and between what the service manual says and the research done on the internet, I am still confused on the oil to be used in the CARC.
Here in France, ENI/Agip is a rare as hens teeth, so I had to buy the stuff from Germany.
The book states 85W90 for the CARC, but the German outfit sent me 85W140.
A bit of research on the webby came up with this :
eni Rotra bike MG 85W140 is a special EP lubricant complying with API GL-4 and API GL-5 performances, specifically designed for lubricating gears and final transmissions of motorbikes and scooters running under particularly heavy conditions and subjected to dynamic loads and high operating temperatures.
This oil has been designed with particular regard to lubrication of the spiral bevel gears of shaft transmissions on MOTO GUZZI models.
What do the experts think... should I swap out the 85W140, and fill up with 85W90 of leave the 85W140 in the CARC ?